Term
| what is the momentum of a 70 kilo athlete running at 4m/s? |
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Definition
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Term
| what is the equation for momentum? |
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Definition
| momentum = mass x velocity |
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Term
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Definition
| momentum is a way of describing how hard it is to change the motion of an object. |
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Term
| what happens if there is a large momentum? |
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Definition
| the greatter the momentum of an object, the harder it is to stop that object or change its motion. |
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Term
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Definition
| ... the bigger the momentum. |
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Term
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Definition
| ...the smaller the momentum. |
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Term
| how does the speed of an object affect the momentum? |
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Definition
| the faster the object, the bigger the momentum. |
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Term
| what is the momentum of a small car weighting 1000kg moving at 5m/s? |
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Definition
| momentum = 5 x 1000 = 5000kgm/s |
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Term
| a boat moving at 3m/s has a momentum of 600kgm/s. what is the boats mass? |
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Definition
mass = momentum\velocity
mass = 600\3 = 200kg |
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Term
| what happens to the momentum of an object if there is no velocity? |
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Definition
| if there is no velocity there is no momentum either |
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Term
| what is velocity measured in? |
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Definition
| velocity is neasured in m/s |
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Term
| what is momentum measured in? |
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Definition
| momentum is measured in kgm/s |
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Term
| what is mass measured in? |
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Definition
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Term
| what does momentum depend on? |
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Definition
| momentum depends on the direction the object is travelling in. |
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Term
| what 2 factors could change the objects momentum? |
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Definition
momentum can change if
1) the object speeds up or slows down
2) the object changes direction |
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